Reference Source

Arizona

For Arizona, who may buy a detached converter is Unlawful for any person to purchase, solicit, advertise, possess or sell a used detached catalytic converter or any nonferrous parts of a catalytic converter, except by an automotive recycler licensed pursuant to title 28, chapter 10 in its ordinary course of business, in a transaction with an industrial account or another scrap metal dealer, after release is authorized by a peace officer, or by a commercial motor vehicle parts or repair business in its ordinary course of business; marking or buyer recordkeeping requirement is A used detached catalytic converter purchased as a vehicle repair part shall be marked with the date the catalytic converter was removed from the vehicle and the vehicle identification number of the vehicle from which it was removed, or an alternative number under a numbering system that can be immediately linked to the vehicle identification number by law enforcement; a person that purchases a used detached catalytic converter shall electronically submit to the department of public safety a record of each transaction; criminal penalty is A violation of this section is a class 1 misdemeanor, except that a violation of subsection A of this section involving the unlawful possession of ten or more used detached catalytic converters is a class 6 felony; statutory citation is 13-3728, recorded from its source on 2026-08-18.

State
Arizona our reading
Who may buy a detached converter
Unlawful for any person to purchase, solicit, advertise, possess or sell a used detached catalytic converter or any nonferrous parts of a catalytic converter, except by an automotive recycler licensed pursuant to title 28, chapter 10 in its ordinary course of business, in a transaction with an industrial account or another scrap metal dealer, after release is authorized by a peace officer, or by a commercial motor vehicle parts or repair business in its ordinary course of business verified
Marking or buyer recordkeeping requirement
A used detached catalytic converter purchased as a vehicle repair part shall be marked with the date the catalytic converter was removed from the vehicle and the vehicle identification number of the vehicle from which it was removed, or an alternative number under a numbering system that can be immediately linked to the vehicle identification number by law enforcement; a person that purchases a used detached catalytic converter shall electronically submit to the department of public safety a record of each transaction verified
Criminal penalty
A violation of this section is a class 1 misdemeanor, except that a violation of subsection A of this section involving the unlawful possession of ten or more used detached catalytic converters is a class 6 felony. verified
Statutory citation
13-3728 verified
Sourceazleg.gov
Verified
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DatasetCatalytic converter sale and possession laws by US state — who can legally buy a used converter, and what a seller must prove

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

13-3728. Unlawful purchase, solicitation, advertisement, possession or sale of used detached catalytic converter; classification; definition A. It is unlawful for a person to purchase, solicit, advertise, possess or sell a used detached catalytic converter or any nonferrous parts of a catalytic converter. B. Subsection A of this section does not apply to: 1. The possession or sale of a used detached catalytic converter or any nonferrous parts of a catalytic converter by an automotive recycler that is licensed pursuant to title 28, chapter 10 if the possession or sale is in the automotive recycler's ordinary course of business. 2. The purchase or sale of a used detached catalytic converter or any nonferrous parts of a catalytic converter as prescribed by section 44-1642.01 that are acquired in a transaction with an industrial account, with another scrap metal dealer or after the used detached catalytic converter or the nonferrous parts of a catalytic converter are authorized for release by a peace officer of the jurisdiction in which the transaction occurs, except that a solicitation or advertisement for a used detached catalytic converter or any nonferrous parts of a catalytic converter may be made only for industrial accounts. 3. The possession or sale of a used detached catalytic converter or any nonferrous parts of a catalytic converter by a commercial motor vehicle parts or repair business that sells or installs new catalytic converters if the possession or sale is in the business's ordinary course of business. A commercial motor vehicle parts or repair business may purchase a used detached catalytic converter being sold as a vehicle repair part in compliance with United States environmental protection agency policy. The used detached catalytic converter in compliance with United States environmental protection agency policy shall be marked with the date the catalytic converter was removed from the vehicle, the vehicle identification number of the vehicle from which the catalytic converter was removed or an alternative number to the vehicle identification number. If an alternative number is used, the alternative number must be under a numbering system that can be immediately linked to the vehicle identification number by law enforcement. C. A person that purchases a used detached catalytic converter or any nonferrous parts of a catalytic converter shall electronically submit to the department of public safety a record of each transaction relating to a used detached catalytic converter or any nonferrous parts of a catalytic converter in accordance with section 44-1644. D. A violation of this section is a class 1 misdemeanor, except that a violation of subsection A of this section involving the unlawful possession of ten or more used detached catalytic converters is a class 6 felony. E. For the purposes of this section, "catalytic converter" has the same meaning prescribed in section 44-1642.01.

azleg.gov, retrieved 2026-08-18

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